lkml.org 
[lkml]   [2007]   [Aug]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 2.6.22.y] ieee1394: revert "sbp2: enforce 32bit DMA mapping"
From
Date
On Mon, 2007-08-06 at 16:25 -0600, Robert Hancock wrote:
> > Anyway. For now I will simply go with what 2.6.23-rc has and what
> > 2.6.21 had: No dma_set_mask anywhere in the 1394 subsystem. We can
> > revisit this whenever an actual need arises.
>
> Not sure this is a very good idea. This seems rather likely to fail on
> x86_64 machines with >4GB of RAM for example..

Would it ? Isn't the default DMA mask for PCI devices set to 32 bits
anyway ? In which case, swiotlb will take care of the matter.

Cheers,
Ben.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-08-07 00:35    [from the cache]
©2003-2011 Jasper Spaans